EVERGREEN, COLORADO - The Panda algorithm-named after Navneet Panda of Google-plays a pivotal role in Google's overall SEO ranking algorithm. Google Panda's updates give users an excellent search experience and eliminate poor-quality content from the SERPs. Google revises its ranking algorithm 500-600 times every year. Panda updates are part of those 500-600 updates. Google launched its first Panda algorithmic update in February. Until now, the Panda algorithm was updated 19 times.
Here's a summary of the Panda algorithmic updates that Google launched.
#1. Panda 1.0 [February 24, 2011]
The first algorithmic update intended to penalize sites with shallow content. The update negatively impacted "content farms" (including some of the most popular article submission sites), resulting in a huge loss of keyword rankings. The update affected approximately12 percent of sites.
#2. Panda 2.0 [April 11, 2011]
The second Google update catered to all English language search results. Later, Google globally expanded the update. The update changed about 2 percent of all keyword searches in the USA.
#3. Panda 2.1 [May 10, 2011]
This update was a minor one with less impact than the previous updates. Google didn't release the data on this algorithmic update.
#4. Panda 2.2 [June 16, 2011]
This update was intended to punish scraper or duplicate content websites, according to Google. Several webmasters noticed an improvement in their keyword rankings while others noticed significant drops.
#5. Panda 2.3 [July 23, 2011]
Google launched this update to differentiate between high quality and poor quality sites. Several sites advanced in terms of Google search rankings as a result of the update.
#6. Panda 2.4 [August 12, 2011]
This Google Panda update was debuted for most languages with exceptions including Chinese, Japanese and Korean. About 6-9 percent of queries for non-English indices were affected by the update.
#7. Panda 2.5 [September 18, 2011]
Google did not reveal the intended purpose of this mysterious update. Google only mentioned that the update was one of the 500 changes that Google performs each year. The algorithmic update was responsible for a drastic loss of rankings for numerous sites.
#8. Panda 2.5.1 [October 9, 2011]
According to Matt Cutts, the Panda-related flux update affected a mere 2 percent of all queries.
#9. Panda 2.5.2 [October 13, 2011]
This update was a minor one to the Panda 2.5 update of September 18, 2011. Google reported losses and recoveries after the algorithmic update.
#10. Panda 3.0 [October 19, 2011]
Popularly referred to as the "Unnoticed Update," it intended to repair and reward the rankings of sites that were wrongly or mistakenly affected by previous Panda updates.
#11. Panda 3.1 [November 18, 2011]
Google officials tweeted that this update merely refreshed data and affected less than 1 percent of queries.
#12. Panda 3.2 [January 18, 2012]
There was yet another data refresh update! The update intended to deal with the discrepancies (cross-language refinements, related search relevance, image search improvement) from previous updates.
#13. Panda 3.3 [February 27, 2012]
The announcement of 40 search updates that happened in February accompanied this Google Panda update. This update brought more accuracy and sensitivity to the Panda algorithm. With this update, Google shut down the old link analysis method. This update also improved local search results.
#14. Panda 3.4 [March 23, 2012]
Google again addressed low quality websites with this update. This algorithmic update affected about 1.6 percent of queries, according to Google's official tweet. Blog networks -like SEO Link Vine and Build My Rank-were hit, despite this minor update. Webmasters that used those blog networks to collect backlinks noticed a sudden drop in their site's search rankings.
#15. Panda 3.5 [April 19, 2012]
Many sites lost as well as gained in their Google search rankings, as a result of this algorithmic update. Websites that increased in their Google rankings included spotify.com, observer.com, menshealth.com, slideshare.net, technspot.com and usnews.com. Those that lost their rankings were cubestat.com, similarsites.com, merchantcircle.com, newsalloy.com, aboutus.org, appbrain.com and ticketscity.com along with others. [Find the complete list here.]
#16. Panda 3.6 [April 27, 2012]
Google unexpectedly unleashed this update just eight days after the previous update. Despite some sites losing in their rankings, Google said the update was a minor data refresh and would not affect queries (or sites) on a large scale.
#17. Panda 3.7 [June 8, 2012]
This algorithmic data refresh update affected less than 1 percent of queries in the USA and 1 percent across the globe.
#18. Panda 3.8 [June 25, 2012]
Google announced the update was yet again a basic refresh update; they simply ran the Panda algorithm again. The refresh changed about 1 percent of queries worldwide.
#19. Panda 3.9 [July 24, 2012]
The most recent update was a new data refresh. Google announced in a tweet that this data refresh minimally affected 1 percent of all searches globally.
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